Miner

From Absolutist:

Nice and entertaining multi-level arcade game, where you help the Brave Miner go through the levels burying monsters. There are several kinds of monsters, ghosts, and various widgets to collect on your way to the next level. It is quite strategig game, you'll have to think a bit to avoid all the dangers and defeat all monsters. Dosens of levels are included, as well as different skill levels and online contest for the best players. If you like Digger, this game is for you. Upgrades are free. Miner digs holes in the floo to bury monstersr; at full strength, Miner will do it just in three strokes, it will take longer when he gets tired. The strength falls as time goes on, even if Miner is just walking around doing nothing. When the hole is completely digged, a monster will fall into it and hang to the edge for a few seconds. If Miner manages to bury it during this time, the monster will fall. If not, the monster will jump out and the hole will be undone. While a monster is in the hole, another one can safely come over its head. If a hole is not completely digged, this spot becomes a barrier for all monsters and Miner - they cannot cross it. The holes can be made anywhere, except on the lowest floor and over the climbing poles. This game runs on any 32-bit Windows PC.